Investigators reported that, in a randomized controlled trial, patients with vascular cognitive impairment showed improvement on cognitive tests after participating in a six-month exercise program. Independent experts said the findings were promising, but preliminary.Progressive aerobic-exercise training for six months appeared to improve cognition in adults...

Objective: To determine whether cognitive impairment in Parkinson disease (PD) and Alzheimer disease (AD) derives from the same network pathology.Methods: We analyzed 18F-fluorodeoxyglucose PET scans from 40 patients with AD and 40 age-matched healthy controls from the Alzheimer’s Disease Neuroimaging Initiative and scanned an additional...